fetus in fetu

noun

A fetus growing inside the body of another fetus, either from an unsuccessful twin pregnancy, or as a tumorlike growth.

OriginLatin fētus in fētū →
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Meanings

nounfetus in fetu (plural fetuses in fetu)

plural fetuses in fetu · alternative foetus in foetu

  1. medicineA fetus growing inside the body of another fetus, either from an unsuccessful twin pregnancy, or as a tumorlike growth.

Origin

  1. Latinfētus in fētū
  2. Englishfetus in fetu

From Latin fētus in fētū.

More words from Latin

Full word history & related roots →

Translations

Finnish loiskaksonen
  • loiskaksonenfetus growing inside another
Cite this entry
APA

fetus in fetu. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/fetus%20in%20fetu

MLA

“fetus in fetu.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fetus%20in%20fetu. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “fetus in fetu,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/fetus%20in%20fetu.

Source: fetus in fetu on Wiktionary, CC BY-SA 4.0.